Liv and Steven Tyler in Saratoga County, on TV tonight

The Lisa Kudrow-produced celebrity genealogy series, Who Do You Think You Are? — which began life on NBC, but now runs on cable channel TLC — airs its ninth season finale tonight at 8 p.m., a shift in time and day from its usual Sunday night home. The episode’s subject is actress Liv Tyler, currently seen on the final season of HBO’s The Leftovers, and yes, her famous father, Aerosmith frontman Steven Tyler is there with her. It’s his mother’s bloodline they’re tracing, after all.

There are reportedly a raft of tragic Civil War connections, as well as a musical one, and the discovery of African-American (although it would be years until that term would be applied) ancestors in the family. But here’s the part most pertinent to us: Tyler’s research brings her to Saratoga County.

Apparently, Antietam and Gettysburg survivor, her great-great grandfather George Washington Elliott, listed his post-war pension address as Schuylerville so she travels there to consult with a local historian. There she finds out more about Elliott and sees an official military portrait of him. And it’s there, too, where her dad joins her, a rarity for Who Do You Think You Are? This could explain the elder Tyler’s cupcake-craving January appearance in the Capital Region.

Tune in tonight if you don’t want to miss a thing (BOOM — a Steven and Liv reference!) about our local connection to the Rock and Roll Hall of Famer and his Lord of the Rings cast member daughter. Lucky for them that they eventually learned of their familial connection to each other or else she would have ended up investigating the heritage of rocker Todd Rundgren, the person her mother passed off as her father for the first eight years of her life.